Tuners – Tuner unit directly responsive to voltage and/or current... – Reactance tuning
Patent
1976-06-29
1977-11-01
Gensler, Paul L.
Tuners
Tuner unit directly responsive to voltage and/or current...
Reactance tuning
744248A, 338180, H03J 318, H01C 1042
Patent
active
040567958
ABSTRACT:
The base portion of the wiper contact is deformable to assure continuous electrical connection between a lead screw and the aligned resistive strip located on the surface of the turret, as the contact is inserted therebetween. The strip engaging portion is located on the resilient base portion approximately midway between the guide portion and thread engaging portion such that the deformation causes the contact to exert substantially balanced forces on the lead screw. The structure of the guide portion of the contact is designed to enhance mechanical stability by preventing dislodgement of the contact without the necessity for cooperation with other external parts which obstruct visibility of the position indicating member, which is mounted on the contact and extends over the entire width thereof. In addition, means are provided to prevent the relative lateral movement between the contact and the lead screw during lead screw "runoff".
REFERENCES:
patent: 2945199 (1960-07-01), Mucher et al.
patent: 2958841 (1960-11-01), Garstang
patent: 3679980 (1972-07-01), Midgley et al.
patent: 3743976 (1973-07-01), Meyer et al.
patent: 3868621 (1975-02-01), Kitamura et al.
patent: 3987389 (1976-10-01), Nishioka et al.
General Instrument Corporation
Gensler Paul L.
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